A float can sit dead still over fish for an hour while the bait hangs too high or drags bottom, way outside where anything’s feeding, and the usual reaction is to blame the bait. That’s backwards. A float sets depth before it ever tells you about a bite. Hook, bait, weight and line all hang off one number — how far below the float the bait sits — and changing that number changes which layer of water you’re fishing, which is a bigger move than any bait swap.
Find the bottom before guessing at the middle
Plumbing is the step that gets skipped. Clip on a weight heavier than the float can hold up, drop it in, and slide the float up until it sits properly at the surface. Now it’s set to exactly the bottom, and you know the real depth instead of a number you made up. I usually start about a foot up from there and work in steps of six inches to a foot.
How many casts a depth gets
Five or six clean presentations at each setting before moving it. Fewer and you’re reading noise; many more and the session’s gone before you’ve tried three layers. Clean means the bait got where it was supposed to go and stayed there through the drift. A cast that fouled or landed wrong doesn’t count toward the five.
What the float is saying between bites
- Lying flat on its side. The weight isn’t hanging. Either the bait’s on the bottom or the depth is set past the actual bottom.
- Leaning, or dragging steadily one way. Something’s in contact, usually bottom or weeds. Sometimes it’s current pulling the bait faster than the float.
- Riding higher than it did an hour ago. The bait’s gone, or it’s smaller than it was. Check that before deciding anything about the fish.
- Bobbing in a steady rhythm. That’s wind chop. Fish don’t keep time.
- One sharp dip that pops right back. That’s a fish that rejected it, which is real information: something’s down there, and something about the presentation is wrong.
So before you touch bait, color, hook or spot — and especially before you change all of them at once, which tells you nothing — move the depth. Change One Thing Before You Change Everything is that same habit stretched across the whole presentation.
When depth isn’t the variable
If you’ve worked the column from bottom to top and nothing happened at any layer, depth has been answered, and another six inches won’t change it. Now the question is where you are or when you’re there. Reading a Window, and Knowing When to Leave covers making that call honestly. It’s a lot easier to reel up and walk once you know depth wasn’t the thing you missed.
